--- /dev/null 2013-11-05 06:54:39.890372942 +0100 +++ new/test/compiler/intrinsics/mathexact/GVNTest.java 2013-11-12 15:04:11.288282179 +0100 @@ -0,0 +1,60 @@ +/* + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +/* + * @test + * @bug 8028207 + * @summary Verify that GVN doesn't mess up the two addExacts + * @compile GVNTest.java + * @run main GVNTest + * + */ + +public class GVNTest { + public static int result = 0; + public static int value = 93; + public static void main(String[] args) { + for (int i = 0; i < 50000; ++i) { + result = runTest(value + i); + result = runTest(value + i); + result = runTest(value + i); + result = runTest(value + i); + result = runTest(value + i); + } + } + + public static int runTest(int value) { + int v = value + value; + int sum = 0; + if (v < 4032) { + for (int i = 0; i < 1023; ++i) { + sum += Math.addExact(value, value); + } + } else { + for (int i = 0; i < 321; ++i) { + sum += Math.addExact(value, value); + } + } + return sum + v; + } +}